FlatRock

I purchased the KastKing FlatRock Polarized Sport Sunglasses for an upcoming cruise to the Bahamas and a fishing trip. I specifically needed blue mirror lenses for better visibility on the water, a comfortable and secure fit, and a good price—these sunglasses deliver on all fronts. The polarization is solid, cutting glare effectively while enhancing colors, making them ideal for fishing, boating, and general outdoor use. The lightweight frame is comfortable enough for all-day wear, and they stay put even during movement—no annoying slipping down the nose. I also considered Knockaround sunglasses, which I've used before, but I’m glad I went with the FlatRock style. The design works well with my long face and angular features, providing both a stylish and functional fit. For the price, these are an excellent alternative to more expensive polarized sunglasses, and they don’t feel cheap. If you need reliable eye protection for driving, fishing, cycling, or any outdoor adventure, these are a solid pick.

Nothing more to be said but buy these glasses. Durable, perfect fit, keeps the sun out of my eyes! 100% recommend buying !

They feel great, look amazing, fit perfectly, no glare, clear as day, kastking didn’t just kill it with rod and reels they killed it with the glasses too

This is my second purchase of the same glasses. Bought them last summer while working as a lifeguard. They are lightweight and comfortable, the polarizing effect is really good for how inexpensive they are. The frames themselves are durable but the coating on the lens was not, hence why I am buying them again. I love the color effect of these specific lens, it still feels bright but good for sensitive eyes. They fit my face very well and are even good for outdoor exercise!

The feel of these sunglasses is comfortable and not tight or too loose. They Definitely do not feel cheap! blue lenses look great and the vision through wearing them is like seeing in HD. HIGHLY RECOMMEND!

I purchased this sunglasses on June 29th because they were on sale, in preparation for my upcoming beach trip last week 8/1 to 8/8 of 2026. While they are very comfortable and look great, I am disappointed at the fact that the lenses had began to peel? There are black spots on both lenses now after one week at the beach. It says in the description that they are PuriVex Water & Salt Repellent. This are not durable at all, and I am very disappointed because, as stated the glasses fit great and are very comfortable for everyday use. Either for walking, driving, or just hanging by the pool. I would rinse the glasses with fresh water after each use however, that seems to have done nothing to prevent the lenses from being damage. I think, for everyday use these are great. If used at the beach for a week, know that they will not last past the fifth day.

Love these glasses! They are durable, lightweight comfortable. I am an irresponsible owner and have lost two previous pairs. I had one pair for approximately one year and they were super durable. I keep coming back because they are so affordable for a good pair polarized glasses.

Nice glasses, good protection, I just don't like how long the earpieces are and I don't like that they go far past my ears other than that no complaints. I was going to return them and just send them back but I've bought another pair of the Tocca line from them, and I just figured why not keep these as a backup pair or just have options to put on, because they are not horrible they're ear pieces being long is just a pet peeve, and quickly was reversed with putting a pilotfish sunglasses wire on them. For the price KastKing on a lot of their stuff is a steal and quality, a local fishing store by me stocks their stuff. After all and all. These are the most comfortable frames by KastKing for me, I can just be picky mostly bc hats are getting in the way of the frames.... But the flatrocks haven't given me any issue at all, especially since I've added a Berkeley glasses strap.. comfortable as all heck. No matter my opinion on the style, KastKing's glasses are great for fishing and UV protection you just have to find the style that is good for you!

Love these - comfortable fit, comes with a sturdy case, they have excellent clarity and for the price they feel like a steal! Highly recommend!

Excelente calidad, buena visibilidad, livianos

Really nice for the price...

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Comfortable and light fit really well.